package com.chentf.reggie.controller;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.util.StrUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.chentf.reggie.common.R;
import com.chentf.reggie.entity.Employee;
import com.chentf.reggie.exception.BusinessException;
import com.chentf.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.annotations.Param;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDate;
import java.time.LocalDateTime;

/**
 * @author chentengfei
 * @desc ...
 * @date 2022-09-03 23:08:47
 */
@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

    /***
     * 员工登录
     * @author chentengfei
     * @date 2022/9/3 23:21
     * @param request
     * @param employee
     * @return com.chentf.reggie.common.R<com.chentf.reggie.entity.Employee>
     */
    @RequestMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
        //1.将页面提交的密码password进行md5加密处理
        String passWord = employee.getPassword();
        passWord = DigestUtils.md5DigestAsHex(passWord.getBytes());

        //2.根据页面提交的用户名userName查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3.如果没有查询到则返回登录失败结果
        if(BeanUtil.isEmpty(emp)){
            return R.error("登录失败");
        }

        //4.密码比对,如果不一致则返回登录失败结果
        if(!emp.getPassword().equals(passWord)){
            return R.error("输入密码不正确!");
        }

        //5.查看员工状态,如果为已禁用状态,则返回员工已禁用结果
        if(emp.getStatus() == 0){
            return R.error("账号已禁用!");
        }

        //6.登录成功,将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);
    }

    /***
     * 员工退出
     * @author chentengfei
     * @date 2022/9/3 23:23
     * @param request
     * @return com.chentf.reggie.common.R<java.lang.String>
     */
    @RequestMapping("logout")
    public R<String> logout(HttpServletRequest request){
        //清理Session中保存的当前登录员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出登录成功!");
    }

    /***
     * 新增员工
     * @author chentengfei
     * @date 2022/9/4 21:27
     * @param request
     * @param employee
     * @return com.chentf.reggie.common.R<java.lang.String>
     */
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        log.info("新增员工,员工信息为:{}",employee.toString());
        //设置初始密码
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
        //获取当前登录用户的id
//        Long empId = (Long)request.getSession().getAttribute("employee");
//        employee.setCreateUser(empId);
//        employee.setUpdateUser(empId);
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
        queryWrapper.eq(Employee::getName, employee.getName())
                .eq(Employee::getUsername, employee.getUsername());
        Employee employeeOne = employeeService.getOne(queryWrapper);
        if(BeanUtil.isNotEmpty(employeeOne)){
            return R.error("已经存在该员工信息了!");
        }
        employeeService.save(employee);
        return R.success("新增员工成功!");
    }

    /****
     * 员工信息分页查询
     * @author chentengfei
     * @date 2022/9/4 21:26
     * @param page
     * @param pageSize
     * @param name
     * @return com.chentf.reggie.common.R<com.baomidou.mybatisplus.extension.plugins.pagination.Page>
     */
    @GetMapping("page")
    public R<Page> page(int page,int pageSize,String name){
        log.info("页数page = {},条数pageSize = {},查询条件name = {}",page,pageSize,name);
        //构造分页构造器
        Page pageInfo = new Page(page,pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.like(StrUtil.isNotBlank(name),Employee::getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        //执行查询
        employeeService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);
    }

    /***
     * 根据id修改员工信息
     * @author chentengfei
     * @date 2022/9/10 15:02
     * @param request
     * @param employee
     * @return com.chentf.reggie.common.R<java.lang.String>
     */
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        log.info("根据id修改员工信息...");
        long id = Thread.currentThread().getId();
        log.info("线程id为:{}",id);
//        Long empId = (Long) request.getSession().getAttribute("employee");
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(empId);
        employeeService.updateById(employee);
        return R.success("员工修改信息成功!");
    }

    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("根据id查询员工信息...");
        Employee employee = employeeService.getById(id);
        if(BeanUtil.isNotEmpty(employee)){
            return R.success(employee);
        }
        return R.error("没有查询到对应员工信息");

    }
}
